Re: automatic timestamp question

On Wed, Jan 10, 2001 at 05:20:26PM -0800, Richard Seymour wrote:
  :
  : What I want is for the modified field to automatically pop in the
  : current time whenever I update the record. The typical update would be
  : something like:
  :
  : UPDATE xxx SET
  :     something = "hello",
  :     somethingelse = "goodbye" where id = 2;
  :
  : What is the easiest, most generic way to do this?

Some lines out of my scripts:

$query1 = sprintf "alter table $table
        add modtime timestamp DEFAULT now() NOT NULL;";

$query3 = sprintf "alter table $table
        add moduser text default 'initial' NOT NULL;";

$triggername = "${table}_modstamp";
$query2 = sprintf "CREATE TRIGGER $triggername
    BEFORE INSERT OR UPDATE ON $table
        FOR EACH ROW
        EXECUTE PROCEDURE modstamp();";


CREATE FUNCTION modstamp() RETURNS opaque AS '
    BEGIN
        NEW.modtime := now();
        NEW.moduser := getpgusername();
        RETURN NEW;
    END;
' LANGUAGE 'plpgsql';

Regards,
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